clcollins

#!/bin/bash
# Script that can be run to cleanup a Jenkins slave server that's used to build docker images
# Tries to account for the fact that a job might be running and using images & containers

# Adjust the Docker command to match your environment (esp. the $HOST hostname)
# TLS included as script it designed to be run from the master
DOCKER_TLS_VERIFY=1
DOCKER="docker --tlscacert /ca.pem --tlscert /cert.pem --tlskey /key.pem -H ${HOST}"
  
RUNNING_CONTAINERS=$($DOCKER ps -q)

clcollins

---
## Snippet of Ansible Playbook for auto-expanding a volume group based on disks on the server

  ### Format Partitions ###
  - name: Format | find disks
    command: find /dev -regex "/dev/sd[b-z]" -exec echo "{}," \;
    register: extra_pvs

  - name: Format | expand vg if extra_pvs exist
    # defaultpv comes last, because extra_pvs are formatted to have a comma on the end

clcollins

#!/bin/bash

usage () {
  cat << EOF
Usage: dkr HOSTNAME
       dkr HOSTNAME COMMAND [arg...]

A wrapper around Docker to simplify using TLS connections

In the first form, will watch the output of "docker ps" and "docker images" on the remote host.

clcollins

Docker Build Pipeline with Remote Asset Compilation

Problem

To compile code into assets/artifacts and build a Docker image with the resulting code only, and no compilers/devel packages/libraries, you have a workflow like so:

clcollins

# Found on Reddit - cannot now remember where
# Modified by Chris Collins to suite his tastes

git rev-parse 2> /dev/null && git status --porcelain -b | awk '
/^## / {
        branch = $0;
        sub(/^## /, "", branch);
        sub(/\.\.\..*/, "", branch);

        if ($0 ~ /ahead /) {

clcollins

#!/bin/bash

# Super basic script outlining the steps to enable namespace support for Docker on
# el7-base systems (CentOS7, RHEL7, etc).

set -e

echo "Enabling user_namespace kernel option..."

grubby --args="user_namespace.enable=1" --update-kernel="$(grubby --default-kernel)"

clcollins

fatal: [10.0.11.227]: FAILED! => {"changed": false, "cmd": ["/usr/local/bin/oc", "create", "-n", "openshift", "-f", "/etc/origin/examples/image-streams/image-streams-centos7.json"], "delta": "0:00:00.648866", "end": "2017-05-22 19:52:08.699647", "failed": true, "failed_when_result": true, "rc": 1, "start": "2017-05-22 19:52:08.050781", "stderr": "Unable to connect to the server: dial tcp: lookup <HOSTNAME OF ELB FOR MASTERS> on 10.0.0.2:53: no such host", "stderr_lines": ["Unable to connect to the server: dial tcp: lookup <HOSTNAME OF ELB FOR MASTERS> on 10.0.0.2:53: no such host"], "stdout": "", "stdout_lines": []}

clcollins

#!/bin/bash

set -o errexit
set -o nounset

main () {
  local mongo_repo="https://github.com/CommunityHoneyNetwork/mongodb.git"
  local mongo_commit="c95ab34ba961b4e29b9973a7eec2d0133f15be5c"
  local redis_repo="https://github.com/CommunityHoneyNetwork/redis.git"
  local redis_commit="b7ad930a8d7a0296fb2fadf955e2a58c3aee73e4"

clcollins

FROM ubuntu:17.10
MAINTAINER Chris Collins <[email protected]>

ENV PKGS python python-pip nginx runit

RUN apt-get update && \
    DEBIAN_FRONTEND=noninteractive apt-get install -y $PKGS

RUN pip install mkdocs
ADD default /etc/nginx/sites-enabled/default

clcollins

version: '2'
services:
  mongodb:
    build:
      dockerfile: ./Dockerfile-centos
      context: https://github.com/CommunityHoneyNetwork/mongodb.git
    image: mongodb:centos
    ports:
      - "127.0.0.1:27017:27017"
    volumes: